Pumping mechanism



Feb. 3, 1942.

K. H. KANALZ PUMPING MECHANISM 2 Sheets-Sheet 1 Filed 001:. 9, 1959 Feb 1942- K. H. KANALZ PUMPING MECHANISM 2 Sheets-Sheet 2 Filed Oct. 9, 1939 Patented Feb. 3, 1942 UNlTED" STATES PATENT- OFFICE} PUMPING MECHANISM Karl. H. Kanalz,..Parkersburg, W.Va., assignor.

to .The', Parkersburg Rig & Reel Company, Parkersburg', W. Va., a corporation of West Virginia;

Applicationloctober 9, 1939, Serial No. 298,675

12 laims.

This inventionyrelatesto pumping :mechanisms and is an improvement overtone-form of the invention disclosed and claimed the copending suitable prime mover: through; a gear reducing mechanism.

As pointed out two oil wellsin close :proximity'to each .-other.

For example, where there are oil-bearing sands at different depths, one well maybe drilled to tap-the sand at first well to tap another oil-bearing-sand. I In some cases, the wellsof a .pair are drilled fairly close together in which case it is practical to use one form'of the invention shown in v the copending application.- referred to. In other cases, the wells of apairuare drilled a greater distance apart, thus rendering p'racticable the other form of the-invention'shown in the copending application: referred to a common crank shaft drives two walkingbe'ams, one for each well,- with the walking beams arranged in parallelplanes-and projectingin opposite directions from each other.

Such apparatus has been found to .be wholly satisfactory and practicable where the 1 well centers are arranged uniform distances apart-to permit a standard pumping mechanism, to be used. However, the wells are not always-spaced the same .distance apart; and. this has given rise to substantial difficultiesin the provision of a standard pumping-wapparatuswhich is capable of pumping oil from wells spaced different distances apart.

When wells of this type came into use,-;engi-.

neers were of the opinion that it would be necessary to provide a pumping apparatus having three adjustments in order to adapt the pumping mechanism to use'with wells arranged-different distances apart without afiecting the efliciency of the apparatus or materiallyaffecting the stresses in the various parts of the apparatus. It was considerednecessary;that the; Samson post be adjustablymounted'ona unit bas rthat,

in 1 the :copending application referred to, it is possible in some :localitiesto drill one depthv while' another well may be drilled in .fairly *close proximity to :the

1-: 1, wherein somewhat 1 (01. 74-41) r the walking beams be adjustable on their saddles,

and that the pitman stirrup bearingsbeadjustable on the respective walkingbeams.

I have found that, it'is possible to provide a 5 pumping apparatus employing two "walking beams arranged in parallel planes and projecting in opposite directions from each other and to adapt such :mechanism to the pumping of the wells at various distances apart byproviding a 10 single adjustment instead of the-threeadjustments which were considered: necessary in an apparatus of this character, and accordingly an important object of the invention is to provide.

a simple novel type of pumping; mechanism 15 adapted for pumping from wells having centers: at varying-"distances apart within reasonable limits. I

A further object is to provide a pumping tapparatus, of the character referred'to whereinthe fl' apparatus is adjustable for use with wells arrangedat different distances apartby adjusting" the'position'of thesaddleqon top of'the Samson.

post. of each-walking beam.

Other objects. and advantages of the' inven- -tion': will become apparent during the.- courseof the following description;

In the'drawings I have shown one embodiment of the invention. In this showing:--

Figure l is a side elevation of-the-apparatus', Figure 2. is a plan view of :the' same,

its support; and'associatedelements,

Figure 4 is view on lined-4 of Figure 3; and,-

Figure 5' is a perspective View ofoneiof thev Samson post top plates.

Referringto Figures l and thetnumeralilfl I designates a base structureqas- :a whole upon which is mounteda pair of spaced-Samson posts H each of which supports a bearing l2,-in-a manner to be described; through whichthe two are intendedto pump. Each walking beam is provided with a head-15 for connecting the well end of thebeam to the polished rod: N5 'of .the-

associatedwell. It will be obvious that thelparticularlformof :head-or similar means 15 is of noimportance in the present 'inventionw A prime. mover Figure '3 isan enlarged fragmentary side ,ele,-,-.-- vation of one-of the walking beam bearings and-- a fragmentary vertical sectional l1 drives the: usual speed re-e ducingimechanismv 1,8 tooperate a crank shaft I l9 and this shaft is provided at opposite ends with cranks 20, counterweighted as at 2|, and each connected by a pitman 22 to the inner end of one walking beam. The counterweights 2! are preferably arranged approximately 90 degrees apart to secure the advantages fully set forth in the copending application referred to above. Each bearing [2 comprises spaced bearing housings I2 between which is arranged a support I3 of the corresponding walking beam, and the supporting trunnion M for the walking beam projects through the bearing elements I2 and support [3. The bottom of the base23 of each bearing is provided with outstandingv flanges 24 which rest upon a top plate 25 supported upon the upper end of the associated Samson post and secured thereto in any suitable manner, as by welding.

Each bearing base 23 is provided at opposite sides thereof with outwardly ofiset depending ears 26 having an integral webconnection 21, and each pair of ears 26 is apertured as at 28 to slidably receive a threaded adjusting rod 29. Each of these rods has its ends extending through brackets 30 carried by the legs of the Samson post, and nuts 3| are tightened against the brackets to prevent endwise movement of the adjusting rods 29. Each rod 29 is provided with a nut 32 threaded thereon for engagement with the outer face of one of the ears 26. It will be apparent that either nut 32 at each side of each Sampson post may be loosened and the other tightened with respect to its associated ear 26 to effect movement of the associated bearing base 23 with respect to the associated top plate, and such movement obviously efiects similar movement of the associated bearing l2 and the walking beam supported thereby.

Each of the ears 26 is provided with a pair of bolts 33 and these bolts extend downwardly through slots 34 formed in the top plate 25, each top plate being provided with a pair of the slots 34, as shown in Figure 5, and each slot having a reinforcing rib 35 at the bottom thereof as shown in Figures 4 and 5. The bolts 33 serve to clamp the bearing structure for each walking beam in position on its associated top plate 25, as will be apparent.

The operation of.the apparatus is as follows:

Referring to Figure 1, it will be noted that rotation of the crank shaft I 9 by the prime mover and its associated gear reducer unit rotates the cranks 20 to oscillate the walking beams 13 and I4, and thus pump from the two wells. The walking beams are oscillated simultaneously and are preferably 90 degrees out of phase under ideal conditions, as fully set forth in the-copending application of Joe A. Lyne, referred to above. The arrangement of the walking beams and the driving means therefor form per se no part of the present invention.

As set forth above, a standardized construction with the walking beam pivot supports arranged in fixed position cannot be employed in all cases because of variations in the distances between the two wells. To overcome this difficulty, it had been proposed to mount the Samson posts on the base for adjustment longitudinally thereof, and also provide for the adjustment of the walking beamson their saddles as well as for adjustment of the connections of each pitman with respect to its walking beam. These adjustments were thought necessary in order to adapt the apparatus for use with wells arranged different distances apart, since it was thought that some installations might result in overloads on the parts, and it was likewise believed that such adjustments were necessary to eliminate any effect upon the length of the stroke or the motion of each polished rod.

It has been found, however, that with the present invention, by providing the single adjustment whereby each walking beam bearing is adjustable on the associated Samson post top plate, the anticipated difficulties can be avoided. The present apparatus, therefore, provides an extremely simple expedient by which two wells at varying distances apart can be pumped with a standardized apparatus by means of the simple adjustment referred to.

In practice, the slots 34 are of such length as to provide for a total adjustment of 18 inches for each bearing l2, the total adjustment for the two walking beams therefore being 36 inches, which is ample in order to take care of practically all variations between the centers of wells with which the present apparatus is intended to be used. The apparatus is so designed and adjusted as to provide for approximately 12 inches adjustment of each bearing l2 toward its associated well center, and for adjustment approximately 6 inches in the opposite direction. With such an arrangement it has been found that any adjustment of the bearings l2 may be employed without affecting the length of stroke or motion of the polished rods, and without having any appreciable effect on the stresses in the various parts of the apparatus. In this connection, it will be noted that the pivot of each Walking beam is fixed in position with respect thereto, and accordingly the distances between the upper pitman connection of each walking beam, the axis of oscillation of the beam and the center of the corresponding well are not varied with respect to each other. The variation occurs only as to the driving angles between each pitman and its walking beam, which have been found to provide a negligible difference in results.

The method of adjusting the apparatus will be apparent from the foregoing description. All of the bolts 33 of each bearing base 23 are loosened, whereupon the nuts 32 are operated by loosening one set and turning up on the other until the desired adjusted position has been reached. The bolts 33 act as guides by sliding in the slots 34, during an adjusting operation. Upon the completion of the adjustment, it merely is necessary to tighten the nuts 32 and to tighten the nuts of the bolts '33. The bearing structure for each walking beam will then remain indefinitely in its adjusted position, whereupon the walking beams may be operated as long as desired to continue the pumping of the two wells.

It is to be understood that the form of the invention herewith shown and described is to be taken as a preferred example of the same and that various changes in the shape, size andarrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

I claim:

l. A pumping mechanism comprising a pair of walking beams projecting in opposite directions from each other, means for supporting each walking beam intermediate its ends for oscillating movement about a horizontal axis, means at the remote ends of said walking beams for connectof a well, a common driving mechanism for oscillating said walking beams, and meansfor'moving said pivot axes toward and'away: from the respective wells and fixing them in adjusted-posi--- 4 each walking beam to the pumping elementsof a well, a common driving mechanism for oscillat ing said walking beams, means for moving each pivot axis toward and away from its associated well, and means for fixing each pivot axis against movement, whereby said walking beams maybeactuated to effect the pumping operations with said pivot axes in selected adjusted positions.-

3. A pumping mechanism comprising a pair oi walking beams projecting in opposite directions away from each other, a pair of Samsonposts,

means for supporting each walking beam onone of said Samson posts for oscillating movement about a horizontal axis, means at the remote ends of said walking beams for connecting eachwalking beam to the pumping elements of a well, and

a common driving mechanism for oscillating saidwalking beams, each supporting means being con-* structed and arranged whereby said walking beams may be actuated to efiec-t the pumping operations of the pumping elements with said pivot axes in selected adjusted positions at different distances apart on said Samson posts.

4. A pumping mechanism comprising a pair of walking beams projecting in opposite directions away from each other, a pair of Samson posts, means for supporting each walking beam on one of said Samson posts for oscillating movement about a horizontal axis, means at the remote ends of said walking beams for connecting each walking beam to the pumping elements of a well, a common driving mechanism for oscillating said walking beams, and means for moving each supporting means toward and away from and fixing it in position with respect to its associated well whereby said walking beams may be actuated to effect the pumping operations of said pumping elements with said pivot axes in se lected position on said Samson posts.

5. A pumping mechanism comprising a pair of walking beams projecting in opposite directions away from each other, a pair of Samson posts, means for supporting each walking beam on one of said Samson posts for oscillating movement about a horizontal axis, means at the remote ends of said walking beams for connecting each walking beam to the pumping elements of a well, a common driving mechanism for oscillating said walking beams, means for effecting movement of each supporting means toward and away from its associated well, and means for fixing each sup porting means against movement, whereby said walking beams may be actuated to effect the pumping operations of said pumping elements with said pivot axes in selected adjusted positions a predetermined distance from each other on said Samson posts.

6. A pumping mechanism. comprising a pair of walking beams arranged in parallel planes and projecting in opposite directions from each other, a pair of Samson posts, means for supporting said walking beams on the respective Samson posts for oscillating movement about horizontal pumpin mon driving mechanism for oscillating said walking beams, the supporting means for each walk-J ing beam comprisingmeans movable on the top of each Samson post toward and associated well, andmeans for fixingsaidmovable means in selected adjusted position during the pumping operations of said walking beams. 7-. A pumping mechanism comprisinga pair. of

walkingbeams arranged in parallel planes and projecting'in oppositedirections from each other,

a pair of Samson posts, means for supportingsaid walking beams on the respective Samson posts for oscillating movement about horizontalr axes, means at the remoteends-of said walking beams g for connecting them to the respective pumping elements of a pair of wells, and-a common driving mechanism 7 for oscillating said walking beams, the supporting means for each walking beam comprising means movable on the top of each Samson post toward and away from Y the associated well, screw means for effecting movement of each of said movable-means, and I means .for fixing each of said movable means against movement during the pumping operations of said walking beams.

8. A pumping mechanismcompri'sing-a pair of a walking beams arranged in parallel planesand projecting in opposite directions from each other,-

a pair of Samson posts, means for supporting said walking beams on the respective Samson .posts for oscillating movement about horizontal axes, means at the remote ends of said walking beams for connecting them to the respective pumping elements of a pair of wells, and a common driving mechanism for oscillating said walking beams, the supporting means for each walking beam comprising a top plate fixed on the upper end of each Samson post, a bearing structure slidable over said top plate toward and away from the associated well, and means for fixing said bearing structure against movement during the pumping operation of the associated walking beam.

9. A pumping mechanism comprising a pair of walking beams arranged in parallel planes and projecting in opposite directions from each other, a pair of Samson posts, means for supporting said walking beams on the respective Samson posts for oscillating movement about horizontal axes, means at the remote ends of said walking beams for connecting them to the respective pumping elements of a pair of wells, and a common driving mechanism for oscillating said walking beams, the supporting means for each walking beam comprising a top plate fixed on the upper end of each Samson post, a bearing structure slidable over said top plate toward and away from the associated well, screw means for effecting such movement of said bearing structure, and means for positively fixing said hearing structure against movement during the pumping operation of the associated walking beam.

10. A pumping mechanism comprising a pair of walking beams arranged in panallel planes and projecting in opposite directions from each other, a pair of Samson posts, means for supporting said walking beams on the respective Samson posts for oscillating movement about horizontal axes, means at the remote ends of said walking beams for connecting them to the respective pumping elements of a pair of wells, and a comaxes,-means at the remote ends of said walking beams-for connecting them i to the -respective elements of a pair of wells, and a coml,

away from the mon driving mechanism for oscillating said walking beams, the supporting means for each walking beam comprising a top plate fixed on the upper end of each Samson post, a bearing structure slidable over said top plate toward and away from the associated well, screw means for efiecting such movement of such bearing structure, and clamping bolts passing through said bearing structure and said top plate for fixing said bearing structure against movement during the pumping operation of the associated walking beam, said top plate having slots receiving said clamping bolts for permitting movement thereof upon operation of said screw means.

11. A pumping mechanism comprising a pair of walking beams arranged in parallel planes and projecting in opposite directions from each other, a pair of Samson posts, means for supporting said walking beams on the respective Samson posts for oscillating movement about horizontal axes, means at the remote ends of said walking beams for connecting them to the respective pumping elements of a pair of wells, and a common driving mechanism for oscillating said walking beams, the supporting means for each walking beam comprising a top plate fixed on the upper end of each Samson post, a bearing structure slidable over said top plate toward and away from the associated well, screws supported at opposite sides of the upper end of each Samson post parallel to the plane of movement of the associated walking beam, and depending ears carried by said bearing structure and adjustably receiving said screws whereby said movement of said bearing structure may be effected.

12. A pumping mechanism comprising a pair of walking beams arranged in parallel planes and projecting in opposite directions from each other, a pair of Samson posts, means for supporting said walking beams on the respective Samson posts for oscillating movement about horizontal axes, means at the remote ends of said walking beams for connecting them to the respective pumping elements of a pair of wells, and a common driving mechanism for oscillating said walking beams, the supporting means for each walking beam comprising a top plate fixed on the upper end of each Samson post, a bearing structure slidable over said top plate toward and away from the associated well, screws supported at opposite sides of the upper end of each Samson post parallel to the plane of movement of the associated walking beam, depending ears carried by said bearing structure and adjustably receiving said screws whereby said movement of said bearing structure may be efiected, and clamping bolts passing through said bearing structure and said top plate for fixing said bearing structure against movement during the pumping operation of the associated walking beam, said top plate having slots receiving said clamping bolts whereby said bearing structure is permitted to partake of said movement.

KARL H. KANALZ. 

